National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

DW5868 Mammoth Lakes (D5868)

Lat: 37.625°NLon: 118.98°WElev: 7973.0ft.

NA

63°F

17°C

Humidity 59%
Wind Speed SW 4 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 28 Aug 12:30 PM PDT
Extended Forecast for

Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.

    High: 60 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 49. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then a slight chance of showers after 2pm. Mostly sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    T-storms and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. Southwest wind 10 to 15 mph, with gusts as high as 35 mph.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 49. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Saturday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then a slight chance of showers after 2pm. Mostly sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 43. Southwest wind 10 to 15 mph, with gusts as high as 35 mph.
Sunday
Sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 44. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 41. Breezy.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Lakes CA
 37.61°N 118.99°W (Elev. 9137 ft)
Last Update:
11:30 am PDT Aug 28, 2026
Forecast Valid:
12pm PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation